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 :: Mailing Lists

[ILUG] MX record question

[ILUG] MX record question

Justin MacCarthy macarthy at iol.ie
Wed Mar 29 13:13:08 IST 2000


Hi -

>  One way is using a wildcard MX record. That's generally perceived a bad
idea.
>  http://www.sendmail.org/faq/section4.html#4.1
>  DNS&BIND 3rd ed p.378
>  The latter doesn't actuall say it's a bad idea, only that it's dangerous
:)
>

I think I need to do this because the MTA is not SENDMAIL and I need to be
able to add subdoms programmically and we will not be doing the DNS when we
launch.

Subdom will be added by the website, each new group will have a email
alias

all at subdom.dom.net

as well as users

Auser at subdom.dom.net


  The MTA will be able to accept reject subdoms (that bit is done) but I
just need to make sure that they get there !

I don't have DNS & bind to hand - why dangerous?

>  If there are no MX records for anything.dom.net, mail will be sent to
>  anything.dom.net directly (ie. the A record), and not to mail.dom.net.

This would appear to be right ...

~Justin





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